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National
Association of S Gaugers, Inc. Engineering Group
Recommended Practice RP3: Track - Proto:64
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Track Gauge minimum
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Gmin
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0.883" 22.43mm
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Track Guage maximum
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Gmax
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0.909" 23.09mm
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Check Gauge minimum
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Cmin
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0.851" 21.62mm
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Span maximum
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Smax
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0.822" 20.88mm
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Flangeway maximum
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Fmax
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0.041" 1.04mm
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Flange Height minimum
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Hmin
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0.026" 0.66mm
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Point Spread maximum
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Pmax (E) Electrical
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0.838" 21.28mm
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Notes:
- For further information on Track & Wheels,
see NASG Standard RP3 & RP4 Help File.
- Recommended Wheel Contour is Association of
American Railroads.
- Adopted by the NASG - September 1998.
Drawn
by Randy Wilson - 27 December 1995
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